TY - GEN AU - Middleton, James A. AU - Corbett, Robert TI - Sixth-garde students conceptions of stability in engineering contexts T2 - Studies in Mathematical Thinking and Learning KW - Psicologia Educacional KW - 3500 - Psicologia Educacional UR - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/e2.htm ER -